Results 11 to 20 of about 1,792,499 (213)
Distributed Processing of a Fractal Array Beamformer [PDF]
IET Intelligent Signal Processing Conference 2013 (ISP 2013), 2013 Fractals have been proven as potential candidates for satellite flying formations, where its different elements represent a thinned array. The distributed and low power nature of the nodes in this network motivates distributed processing when using such an array as a beamformer. This paper proposes such initial idea, and demonstrates that benefits such
Karagiannakis, Philippos +4 more
core +7 more sources
Robust and distributed beamforming
2009 International Conference on Wireless Communications & Signal Processing, 2009 This paper studies the use of amplify-and-forward (AF) relays for robust beamforming, with the aid of imperfect channel state information (CSI) at the sender. In particular, the maximization of the worst-case signal-to-noise ratio (SNR) at the destination terminal is studied under a bounded spherical region for the norm of CSI error vector.
Gan, Zheng +3 more
core +4 more sources
Successive deterministic distributed beamforming
2013 IEEE International Conference on Communications (ICC), 2013 This paper presents a new phase-alignment algorithm for distributed beamforming [1].1 This scheme is more energy-efficient than existing solutions, since it requires each node to transmit only once, but it converges at least as fast as all other previously proposed algorithms.
Ilaria Thibault +4 more
openaire +4 more sources
Multi-Dimensional Physical-Layer Security via Digitally Mediated Space-Time Modulation. [PDF]
Adv Sci (Weinh)Digitally mediated space–time modulation moves radiation control beyond hardware‐bound switching. Multiple information‐bearing and masking waveforms are jointly synthesized at baseband and coherently coupled to simple periodic time modulation, enabling programmable, independently directed multi‐beam radiation without increasing switching‐state ...
Chen K +8 more
europepmc +2 more sources
Distributed beamforming and power allocation for cooperative networks. [PDF]
, 2008 Cooperative diversity systems rely on using relay nodes to relay copies of transmitted information to the destination such that each copy experiences different channel fading, hence increasing the diversity of the system.
Ding, Zhiguo +2 more
core +4 more sources
ADMM for Distributed Dynamic Beamforming [PDF]
IEEE Transactions on Signal and Information Processing over Networks, 2018 This paper shows the capability the alternating direction method of multipliers (ADMM) has to track, in a distributed manner, the optimal down-link beam-forming solution in a multiple input multiple output (MISO) multi-cell network given a dynamic channel. Each time the channel changes, ADMM is allowed to perform one algorithm iteration.
Marie Maros, Joakim Jaldén
openaire +2 more sources
Distributed beamforming with binary signaling [PDF]
2008 IEEE International Symposium on Information Theory, 2008 We consider a distributed beamforming problem where nodes are restricted to sending binary phases to a receiver that has access to a one-bit feedback channel. Our simplified model allows us to prove a rigorous lower bound on the running time and to explore algorithmic techniques and analyses.
Mark Johnson +2 more
openaire +2 more sources
Precision planter monitoring system based on mobile communication network
IET Networks, EarlyView., 2022 Abstract Sowing is an important link in agricultural production and the basis for ensuring high yields and bumper harvests. Agriculture requires precision plows with good performance and stable work. However, the seeding process is in a completely closed state, and the operator relies mainly on experience to judge the operating state and performance of
Bing Li, Jiyun Li
wiley +1 more source
, 2023 <p><strong>Full Changelog</strong>: https://github.com/jdassink/beamforming/commits/beamforming</p ...
Jelle Assink
core +1 more source
Near-Field Beamforming Algorithms for UAVs
Sensors, 2023 This study presents three distributed beamforming algorithms to address the challenges of positioning and signal phase errors in unmanned aerial vehicle (UAV) arrays that hinder effective beamforming.
Yinan Zhang +5 more
doaj +1 more source